APAR status
Closed as program error.
Error description
XSLTransform provide has property stylesheet cache level to specify the stylesheets to be compiled and cached. But even if the stylesheet is in the cache, during the processing of each input message the stylesheet file is accessed from the file system. This is to check the last modified time of the stylesheet and to determine whether the cache contains the correct version of the stylesheet. But accessing the stylesheet from the file system for each input message can cause a performance issue if the file operations perform badly. The APAR provides an option to turn off accessing the stylesheet from the file system during the processing of each input message.
Local fix
Deploy the stylesheet along with the bar file.
Problem summary
**************************************************************** USERS AFFECTED: All users of IBM App Connect Enterprise V11.0 and V12.0 and IBM Integration Bus V10.0 using the XSLTransform node Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: XSLTransform node has property 'stylesheet cache level' to specify the stylesheets to be compiled and cached. But in the case of non-deployed style sheets even if the stylesheet is in the cache, during the processing of each input message the stylesheet file is accessed from the file system. This is to check the last modified time of the stylesheet and to determine whether the cache contains the correct version of the stylesheet. But accessing the stylesheet from the file system for each input message can cause performance issues if the file operations perform badly.
Problem conclusion
The product now introduced an environment variable 'MQSI_XSLT_CACHED_XSLTFILES_MODIFIED_TIME_CHECK_INTERVAL' to control the frequency in accessing the stylesheet from the file system. This environment variable can be set with values -1,0 and any positive number. MQSI_XSLT_CACHED_XSLTFILES_MODIFIED_TIME_CHECK_INTERVAL=0 (default), existing behaviour of lastModified time check on the cached XSLT file during the processing of each input message. MQSI_XSLT_CACHED_XSLTFILES_MODIFIED_TIME_CHECK_INTERVAL=-1 completely turns off the lastModified time check on the cached XSLT files. MQSI_XSLT_CACHED_XSLTFILES_MODIFIED_TIME_CHECK_INTERVAL=TimeInte rvalInSeconds, say MQSI_XSLT_CACHED_XSLTFILES_MODIFIED_TIME_CHECK_INTERVAL=120 then after the expiry of every 2 minute, during the processing of the message the message flow checks the lastModified time on the cached XSLT file. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v10.0 10.0.0.25 v11.0 11.0.0.15 v12.0 12.0.3.0 The latest available maintenance can be obtained from: http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041 If the maintenance level is not yet available,information on its planned availability can be found on: http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT36793
Reported component name
INTEGRATION BUS
Reported component ID
5724J0540
Reported release
A00
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-05-05
Closed date
2022-03-10
Last modified date
2022-03-11
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
INTEGRATION BUS
Fixed component ID
5724J0540
Applicable component levels
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNQK6","label":"IBM Integration Bus"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"10.0"}]
Document Information
Modified date:
12 March 2022